Police say a young rider was caught travelling 151km/h over the limit on a Sydney motorway, in what is believed to be the highest speed recorded by officers so far this year

A 23-year-old motorcyclist has allegedly been caught riding at 251km/h on the M12 Motorway at Bringelly, losing his licence and number plates after police tracked him down.

Police say the rider of a Suzuki GSFX-650 was detected by laser shortly after 9pm on Saturday. Officers allege he was travelling 151km/h above the speed limit, in what is believed to be the fastest speed recorded by police so far this year.

The rider was later stopped in Luddenham, where police issued him with a Court Attendance Notice for several alleged offences. These include dangerous driving, exceeding the P2 speed limit by more than 45km/h, and failing to display P-plates.

Police also shared an image on social media that allegedly showed the motorcycle’s number plate flipped up.

His licence and plates were confiscated at the scene, and he was directed to appear before Liverpool Local Court on June 15.

When questioned by police, the man allegedly said: “At that speed, if you look down, you’re dead”.

NSW Traffic and Highway Patrol Command Inspector Joshua Dixon said the alleged behaviour was especially troubling as Road Safety Week begins.

“It’s disappointing that we’re leading into Road Safety Week this week and drivers and riders are still showing some extremely poor choices around driver behaviour,” he said.

The Bringelly incident comes as authorities face mounting concern over dangerous motorcycle hooning across Sydney.

Social media videos have shown riders weaving through traffic at alleged speeds of more than 300km/h on major roads, including the M5 tunnel, where the speed limit is 90km/h. In one video, a rider allegedly appears to provoke police into a pursuit before speeding between cars to get away.

Motorcycle Riders Association Australia spokesperson Damien Codognotto said the behaviour was putting pressure on already stretched police resources.

“Most Australian police forces are under-resourced as it is, and they’ve got to chase these nutcases,” he told 9News.

He also warned of the devastating consequences for the young people involved.

“These young people probably have potential for later in life, raising families and careers, that can all be snuffed out in a millisecond,” he said.

There is no suggestion the Bringelly matter is connected to the motorcycle videos circulating on social media.